Sets 'path_prefix', as described below.
+=head2 action_args
+
+Allows you to set constructor arguments on your actions. You can set arguments
+globally (for all actions of the controller) and specifically (for a single
+action). This is particularly useful when using C<ActionRole>s
+(L<Catalyst::Controller::ActionRole>) and custom C<ActionClass>es.
+
+ __PACKAGE__->config(
+ action_args => {
+ '*' => { globalarg1 => 'hello', globalarg2 => 'goodbye' },
+ 'specific_action' => { customarg => 'arg1' },
+ },
+ );
+
+In the case above the action class associated with C<specific_action> would get
+passed the following arguments, in addition to the normal action constructor
+arguments, when it is instantiated:
+
+ (globalarg1 => 'hello', globalarg2 => 'goodbye', customarg => 'arg1')
+
=head1 METHODS
=head2 BUILDARGS ($app, @args)